In my spring boot project I have a Document class that has a bi-directional OneToOne relationship to an Invoice class, which share the same ID. Docum ...
In my spring boot project I have a Document class that has a bi-directional OneToOne relationship to an Invoice class, which share the same ID. Docum ...
I have Person and PersonDetail models below which have one-to-one relationship: class Person(models.Model): name = models.CharField(max_length=20 ...
Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/threading.py", line 864, in run self._target( ...
I have a model Run with two ForeignKeys, signup and report, pointing to models, which in turn are related to another model, Training, When creat ...
Can there be two one-to-one relationships between the same tables? And is it actually a "right" way to represent this? The task for such entities in ...
I'm looking for a good way to check one-to-one relationships in the table of specified tags. I have three types of tags: primary (P) and two secondary ...
I have a case where table X can have a one-to-one relation to table Y and at the same time have a one-to-many relation to table Y on the same field. I ...
I explain the Global context. I want to create a simple system composed of two entities, an agency and employee. I want to model the notion of agency ...
I created abstract class Entity (I want to create different types of shapes): and I want to every add to every entity table with details: The lo ...
I try to get the Author of an Article, which is a One-To-One relation, but i can't get it. My foreign key author_id is in the Article. So i define ...
I am starting with JPA and EclipseLink and did some experiments. But results are a little unexpected for my understanding. Here for example I have a b ...
I need some SQL guidance. I have a table (A) that looks like this (note the rows should be unique by ID+CommType): Member ID C ...
I'm using NestJS + TypeORM, and have two entities that looks like follows: When a consumer sends a request to create a User like the following, wit ...
What is the proper way to add a OneToOneField in Django? Does it go in the parent class or child class? The official docs don't really explain this. W ...
I have one problem with One to One relation. I have one USER that has only one TEAM User Entity Team Entity This is the way I´m trying to crea ...
I have 3 tables with Many to Many relation. Table1: shops -> name, location_id Table2: items Pivot table: item_shop -> item_id, shop_id A Sh ...
When I create a one-to-one relationship migration, laravel creates a one-to-many relationship. I tried to solve this in different ways and nothing wor ...
I have two classes: and: I'm trying to use CriteriaBuilder to programmatically create a query to load records from ComicBook that do not have an ...
I am a beginner with Django and especially with the Django REST framework. Inside "UserRegistration" class, I want to create a new user and ExtendUser ...
I have a table that contains properties and their types: I have a second table 'agents' with the same number of records as the properties table. ...